US8056298B2 - Support for elevated mass - Google Patents
Support for elevated mass Download PDFInfo
- Publication number
- US8056298B2 US8056298B2 US11/795,339 US79533906A US8056298B2 US 8056298 B2 US8056298 B2 US 8056298B2 US 79533906 A US79533906 A US 79533906A US 8056298 B2 US8056298 B2 US 8056298B2
- Authority
- US
- United States
- Prior art keywords
- support
- supporting columns
- elevated mass
- columnar structure
- transition section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related, expires
Links
- 230000005484 gravity Effects 0.000 claims abstract description 10
- 230000007704 transition Effects 0.000 claims description 20
- 238000006073 displacement reaction Methods 0.000 description 10
- 238000005452 bending Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
- E02B17/027—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto steel structures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/0004—Nodal points
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
- F03D13/25—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B2017/0091—Offshore structures for wind turbines
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H2012/006—Structures with truss-like sections combined with tubular-like sections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/90—Mounting on supporting structures or systems
- F05B2240/95—Mounting on supporting structures or systems offshore
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2250/00—Geometry
- F05B2250/30—Arrangement of components
- F05B2250/31—Arrangement of components according to the direction of their main axis or their axis of rotation
- F05B2250/311—Arrangement of components according to the direction of their main axis or their axis of rotation the axes being in line
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/727—Offshore wind turbines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S416/00—Fluid reaction surfaces, i.e. impellers
- Y10S416/06—Supports for natural fluid current motors
Definitions
- This invention regards a constructional support for an elevated mass. More particularly, it regards a support comprising at least three extended supporting columns, where the longitudinal axes of the support columns meet near the centre of gravity of the elevated mass.
- the support is particularly suited for exposed installations such as offshore windmills.
- the upper supporting structure of a windmill must have a slim design in order to avoid collisions with the wings of the windmill.
- this slim construction which is usually constituted by a pipe, is known to be coupled to a foundation in the ground.
- the supporting tower structure for known offshore windmills often comprises a tubular upper portion and a lower portion, which may be e.g. a trussed structure.
- Wind, currents and waves that affect the support cause a relatively large horizontal displacement of the elevated mass, here represented by the rotor and machinery of the windmill.
- the object of the invention is to remedy or reduce at least one of the disadvantages of prior art.
- a support for an elevated mass and constructed in accordance with the invention comprises at least three extended, mutually trussless supporting columns.
- the supporting columns project up from the foundation of the support, in the direction of the elevated mass.
- the longitudinal axes of the supporting columns meet near the centre of gravity of the elevated mass.
- the longitudinal axes of the supporting columns meeting near the centre of gravity of the elevated mass will allow horizontal forces affecting the elevated mass to be transferred to the foundation of the constructional support in the form of nearly pure pressures and tensile stresses in the supporting columns.
- This pattern of forces in the supporting columns contributes to a significant reduction of the occurring shear forces, thereby eliminating the need to brace the supporting columns by use of e.g. diagonal struts.
- the upper portion of the support is a slim columnar structure where the columnar structure is rigidly connected to the upper portion of the supporting columns by a transition section.
- a slim columnar structure will, among other things, allow the support to be adapted for use with a windmill where the rotor and the rest of the machinery of the windmill forms the elevated mass.
- the transition section may be e.g. a stay structure that is known per se.
- the transition section When subjected to lateral forces along the height of the support, which forces are caused by e.g. wind, currents or waves, the transition section undergoes a slight elastic displacement in the direction of the forces, as the forces exert torque about the foundation of the support.
- a rotation is thereby imparted to the transition section, in the opposite direction of said torque about the foundation of the support.
- the horizontal displacement of the elevated mass is insignificant when using a constructional support according to the invention.
- Forces acting at the point of intersection between the longitudinal axes of the supporting columns are transferred via the supporting columns, mainly in the form of axial tension.
- the displacement due to these forces is relatively small.
- Forces acting laterally on the remaining height of the support will, as explained above, cause the elevated mass to be displaced against the direction of the forces in order to compensate for the displacement resulting from other deformations.
- the structure of the invention is equally suitable for shore-based windmills.
- FIG. 1 shows a windmill where the lower portion of the support consists of supporting columns
- FIG. 2 is a schematic view of a support according to the invention.
- FIG. 3 shows the same as FIG. 2 , but here the support has been deformed by forces of the weather
- FIG. 4 shows a windmill provided with a support according to prior art.
- reference number 1 denotes a windmill comprising a foundation 2 , a constructional support 4 , machinery 6 and a wind turbine 8 .
- the machinery 6 and the wind turbine 8 form an elevated mass.
- the foundation 2 may comprise piles or suction anchors (not shown) of a type that is known per se.
- the windmill 1 is mounted on the seabed 10 ; as part of the support 4 is located below the surface 12 of the sea.
- the support 4 comprises four slim supporting columns 14 , 14 ′, 14 ′′, 14 ′′′ projecting from the foundation 2 up to a transition section 16 .
- a slim columnar structure 18 in the form of a pipe rises from the transition section 16 to the machinery 6 .
- the longitudinal axes of the supporting columns 14 - 14 ′′′ meet near or at the centre of gravity 20 of the machinery 6 and the wind turbine 8 , see FIG. 2 .
- External lateral forces, represented here by arrow 22 , acting on the support 4 at the centre of gravity 20 are transferred to the foundation 2 , mainly in the form of tension and compressive stress in the supporting columns 14 - 14 ′′′.
- FIGS. 2 and 3 show supporting columns 14 and 14 ′′ only.
- the transition section 16 which consists of a stay connection of a type that is known per se, is quite rigidly mounted between the supporting columns 14 - 14 ′′′ and the slim columnar structure 18 .
- the transition section 16 extends between the supporting columns 14 - 14 ′′′, which due to their direction towards the centre of gravity 20 are spaced apart at the transition section 16 .
- transition section 16 is displaced slightly in the direction of the arrows 24 due to the bending moment that occurs about the foundation 2 .
- this displacement will cause the upper portion 26 of the supporting column 14 located on the side facing the wind, current or waves to displace further downwards in height due to its slanting position where it leans with the direction of the forces, compared to the upper portion 28 of the supporting column 14 ′′.
- the supporting column 14 ′′ is located on the opposite side of the support 4 , leaning against the direction of the forces.
- a vertical centre line 30 in FIG. 3 shows the centre of the support prior to deformation.
- the rigid mounting of the supporting columns 14 - 14 ′′′ to the foundation 2 and the transition section 16 causes the supporting columns 14 - 14 ′′′ to assume a slight S-shape during the lateral deformation, as indicated in FIG. 3 . It is also possible (not shown) to connect the supporting columns 14 - 14 ′′′ to the foundation 2 and the transition section 16 via articulated links.
- FIG. 4 shows a constructional support 32 according to prior art, where the lower portion of the support consists of truss work 34 .
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wind Motors (AREA)
- Paper (AREA)
- Bridges Or Land Bridges (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
Description
Claims (2)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20050271A NO322247B1 (en) | 2005-01-18 | 2005-01-18 | Bearing construction for elevated pulp |
NO20050271 | 2005-01-18 | ||
PCT/NO2006/000015 WO2006078167A2 (en) | 2005-01-18 | 2006-01-13 | Support for elevated mass |
Publications (2)
Publication Number | Publication Date |
---|---|
US20080290245A1 US20080290245A1 (en) | 2008-11-27 |
US8056298B2 true US8056298B2 (en) | 2011-11-15 |
Family
ID=35217782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/795,339 Expired - Fee Related US8056298B2 (en) | 2005-01-18 | 2006-01-13 | Support for elevated mass |
Country Status (5)
Country | Link |
---|---|
US (1) | US8056298B2 (en) |
EP (1) | EP1838962A4 (en) |
CN (1) | CN101133245B (en) |
NO (1) | NO322247B1 (en) |
WO (1) | WO2006078167A2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140075864A1 (en) * | 2011-05-27 | 2014-03-20 | Owec Tower As | Transition element for connecting a tower to a jacket |
US20140083022A1 (en) * | 2012-09-21 | 2014-03-27 | Eurostal Oy | Hybrid tower structure and method for building the same |
US20150218840A1 (en) * | 2012-07-25 | 2015-08-06 | Thyssenkrupp Steel Europe Ag | Modular tower for a wind power plant |
US9410340B2 (en) * | 2012-08-13 | 2016-08-09 | Offshore Design Engineering Ltd. | Plated transition piece |
US20180170490A1 (en) * | 2015-06-26 | 2018-06-21 | Single Buoy Moorings Inc. | Floating wind turbine assembly, as well as a method for mooring such a floating wind turbine assembly |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7942629B2 (en) * | 2008-04-22 | 2011-05-17 | General Electric Company | Systems and methods involving wind turbine towers for power applications |
NO328411B1 (en) | 2008-06-24 | 2010-02-15 | Owec Tower As | Device for stag connection for wind turbine |
US8613569B2 (en) | 2008-11-19 | 2013-12-24 | Efficient Engineering, Llc | Stationary positioned offshore windpower plant (OWP) and the methods and means for its assembling, transportation, installation and servicing |
DK2440710T3 (en) * | 2009-06-10 | 2016-05-17 | Keystone Engineering Inc | Offshore-fundament |
GB2476051B (en) | 2009-12-08 | 2016-07-27 | Atkins Ltd | A structure for supporting a wind turbine |
US20110133475A1 (en) * | 2010-04-23 | 2011-06-09 | Danian Zheng | Support tower for use with a wind turbine and system for designing support tower |
CN103890387B (en) * | 2011-08-30 | 2016-09-21 | 菱重维斯塔斯海上风力有限公司 | Transition structure for wind turbine tower |
CN102644562A (en) * | 2012-05-14 | 2012-08-22 | 江苏龙源振华海洋工程有限公司 | Process for installing impeller assembly elephant foot balance bracket of offshore wind power field |
CN102777333A (en) * | 2012-07-21 | 2012-11-14 | 广东明阳风电产业集团有限公司 | Truss structure of wind turbine generator set |
CN104153630A (en) * | 2014-07-24 | 2014-11-19 | 福建永福铁塔技术开发有限公司 | Transition connection method of hybrid wind power towers |
US10767632B2 (en) * | 2016-09-09 | 2020-09-08 | Siemens Gamesa Renewable Energy A/S | Transition piece for a wind turbine |
WO2020104680A1 (en) * | 2018-11-23 | 2020-05-28 | Aarhus Universitet | A mechanical fuse for a tower construction and a tower construction comprising a mechanical fuse |
DE112019007295T5 (en) * | 2019-10-31 | 2022-01-27 | Nabrawind Technologies, S.L | TRANSITION PIECE FOR A WIND TURBINE TOWER |
Citations (14)
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US2358805A (en) * | 1942-11-04 | 1944-09-26 | Chicago Bridge & Iron Co | Elevated tank |
US3462907A (en) * | 1967-05-19 | 1969-08-26 | Potlatch Forests Inc | Utility pole with curved,laminated wood beams |
US3834168A (en) * | 1973-03-13 | 1974-09-10 | M Holley | Slip-jointed pile and dolphin construction |
US4106301A (en) * | 1975-12-24 | 1978-08-15 | Kajima Corporation | Building system for seismic-active areas |
DE3130585A1 (en) | 1981-08-01 | 1983-02-17 | Blum, Albert, 5204 Lohmar | Wind generator |
US4423985A (en) * | 1981-09-14 | 1984-01-03 | Chevron Research Company | Tension leg platform with horizontal movement capability |
US4469956A (en) | 1983-01-24 | 1984-09-04 | U.S. Windpower, Inc. | Windmill support structure |
US4688967A (en) * | 1982-10-21 | 1987-08-25 | Ingenior F. Selmer A/S Norway | Offshore platform structure having at least a superstructure and a substructure made of reinforced concrete |
US4906139A (en) * | 1988-10-27 | 1990-03-06 | Amoco Corporation | Offshore well test platform system |
US4932811A (en) * | 1989-06-08 | 1990-06-12 | Robert Folding | Well head conductor and/or caisson support system |
JP2000272581A (en) | 1999-03-23 | 2000-10-03 | Hitachi Zosen Corp | On-water wind power generating set |
US6227803B1 (en) | 1996-11-30 | 2001-05-08 | Hyun Jin Shim | Apparatus for generating electric power using wind force |
WO2003072428A1 (en) | 2002-02-27 | 2003-09-04 | Hitachi Zosen Corporation | Float type base structure for wind power generation on the ocean |
WO2005040605A1 (en) | 2003-10-17 | 2005-05-06 | Aerodyn Engineering Gmbh | Foundation for an offshore wind energy plant |
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US1060861A (en) * | 1910-10-21 | 1913-05-06 | W & L E Gurley | Support. |
SE354497B (en) * | 1972-05-09 | 1973-03-12 | Wikstrand & Berg Wibe Ab | |
US5614918A (en) * | 1994-06-21 | 1997-03-25 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Global positioning system antenna fixed height tripod adapter |
JPH1128495A (en) * | 1997-07-14 | 1999-02-02 | Mitsubishi Heavy Ind Ltd | Water stream generation device |
JP2002097651A (en) * | 2000-09-25 | 2002-04-02 | Kajima Corp | Structure foundation |
DE60211032T2 (en) * | 2002-03-28 | 2006-09-21 | Lino Manfrotto + Co. S.P.A. | DEVICE FOR CARRYING DEVICES, IN PARTICULAR OPTICAL OR PHOTOGRAPHIC DEVICES AND THE SIMILAR |
-
2005
- 2005-01-18 NO NO20050271A patent/NO322247B1/en not_active IP Right Cessation
-
2006
- 2006-01-13 CN CN2006800064261A patent/CN101133245B/en not_active Expired - Fee Related
- 2006-01-13 US US11/795,339 patent/US8056298B2/en not_active Expired - Fee Related
- 2006-01-13 WO PCT/NO2006/000015 patent/WO2006078167A2/en active Application Filing
- 2006-01-13 EP EP06716708.0A patent/EP1838962A4/en not_active Withdrawn
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2358805A (en) * | 1942-11-04 | 1944-09-26 | Chicago Bridge & Iron Co | Elevated tank |
US3462907A (en) * | 1967-05-19 | 1969-08-26 | Potlatch Forests Inc | Utility pole with curved,laminated wood beams |
US3834168A (en) * | 1973-03-13 | 1974-09-10 | M Holley | Slip-jointed pile and dolphin construction |
US4106301A (en) * | 1975-12-24 | 1978-08-15 | Kajima Corporation | Building system for seismic-active areas |
DE3130585A1 (en) | 1981-08-01 | 1983-02-17 | Blum, Albert, 5204 Lohmar | Wind generator |
US4423985A (en) * | 1981-09-14 | 1984-01-03 | Chevron Research Company | Tension leg platform with horizontal movement capability |
US4688967A (en) * | 1982-10-21 | 1987-08-25 | Ingenior F. Selmer A/S Norway | Offshore platform structure having at least a superstructure and a substructure made of reinforced concrete |
US4469956A (en) | 1983-01-24 | 1984-09-04 | U.S. Windpower, Inc. | Windmill support structure |
US4906139A (en) * | 1988-10-27 | 1990-03-06 | Amoco Corporation | Offshore well test platform system |
US4932811A (en) * | 1989-06-08 | 1990-06-12 | Robert Folding | Well head conductor and/or caisson support system |
US6227803B1 (en) | 1996-11-30 | 2001-05-08 | Hyun Jin Shim | Apparatus for generating electric power using wind force |
JP2000272581A (en) | 1999-03-23 | 2000-10-03 | Hitachi Zosen Corp | On-water wind power generating set |
WO2003072428A1 (en) | 2002-02-27 | 2003-09-04 | Hitachi Zosen Corporation | Float type base structure for wind power generation on the ocean |
WO2005040605A1 (en) | 2003-10-17 | 2005-05-06 | Aerodyn Engineering Gmbh | Foundation for an offshore wind energy plant |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140075864A1 (en) * | 2011-05-27 | 2014-03-20 | Owec Tower As | Transition element for connecting a tower to a jacket |
US9194151B2 (en) * | 2011-05-27 | 2015-11-24 | Owec Tower As | Transition element for connecting a tower to a jacket |
US20150218840A1 (en) * | 2012-07-25 | 2015-08-06 | Thyssenkrupp Steel Europe Ag | Modular tower for a wind power plant |
US9828786B2 (en) * | 2012-07-25 | 2017-11-28 | Thyssenkrupp Steel Europe Ag | Modular tower for a wind power plant |
US9410340B2 (en) * | 2012-08-13 | 2016-08-09 | Offshore Design Engineering Ltd. | Plated transition piece |
US20140083022A1 (en) * | 2012-09-21 | 2014-03-27 | Eurostal Oy | Hybrid tower structure and method for building the same |
US20180170490A1 (en) * | 2015-06-26 | 2018-06-21 | Single Buoy Moorings Inc. | Floating wind turbine assembly, as well as a method for mooring such a floating wind turbine assembly |
US10661862B2 (en) * | 2015-06-26 | 2020-05-26 | Single Buoy Moorings Inc. | Floating wind turbine assembly, as well as a method for mooring such a floating wind turbine assembly |
Also Published As
Publication number | Publication date |
---|---|
WO2006078167A2 (en) | 2006-07-27 |
WO2006078167A3 (en) | 2007-01-11 |
CN101133245B (en) | 2012-08-08 |
US20080290245A1 (en) | 2008-11-27 |
EP1838962A2 (en) | 2007-10-03 |
NO322247B1 (en) | 2006-09-04 |
CN101133245A (en) | 2008-02-27 |
NO20050271D0 (en) | 2005-01-18 |
EP1838962A4 (en) | 2015-04-15 |
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Owner name: OWEC TOWER AS, NORWAY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HAUGSOEN, PER BULL;FOSS, GUNNAR;REEL/FRAME:019676/0087 Effective date: 20070718 |
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Free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
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STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
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FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20191115 |